package com.pl.grainmall.ware.config;

import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.Exchange;
import org.springframework.amqp.core.Queue;
import org.springframework.amqp.core.TopicExchange;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.amqp.support.converter.Jackson2JsonMessageConverter;
import org.springframework.amqp.support.converter.MessageConverter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.HashMap;
import java.util.Map;

@Configuration
public class MyRabbitConfig {

    @Autowired
    RabbitTemplate rabbitTemplate;

    /**
     * 使用JSON序列化机制，进行消息转换
     *
     * @return
     */
    @Bean
    public MessageConverter messageConverter() {
        return new Jackson2JsonMessageConverter();
    }


    @Bean
    public Exchange stockEventExchange(){
        //String name, boolean durable, boolean autoDelete, Map<String, Object> arguments
           return new TopicExchange("stock-event-exchange",true,false);
    }
    @Bean
    public Queue stockReleaseStockQueue(){
        //String name, boolean durable, boolean exclusive, boolean autoDelete, @Nullable Map<String, Object> arguments
        return new Queue("stock.release.stock.queue",true,false,false);
    }
    //延时队列
    @Bean
    public Queue stockDelayQueue(){
        Map<String,Object> args=new HashMap<>();
        args.put("x-dead-letter-exchange", "stock-event-exchange");
        args.put("x-dead-letter-routing-key", "stock.release");
        args.put("x-message-ttl", 120000);
        return new Queue("stock.delay.queue",true,false,false);
    }

    @Bean
    public Binding stockReleaseBinding() {
        //String destination, Binding.DestinationType destinationType, String exchange, String routingKey, @Nullable Map<String, Object> arguments
        return   new Binding("stock.release.stock.queue",
                Binding.DestinationType.QUEUE,
                "stock-event-exchange",
                "stock.release.#",
                null);
    }

    @Bean
    public Binding stockLockedBinding() {
        return   new Binding("stock.delay.queue",
                Binding.DestinationType.QUEUE,
                "stock-event-exchange",
                "stock.locked",
                null);
    }


}
